App Overview

Blast Baseball icon

Blast Baseball

Blast Motion, Inc. · Sports

Train smarter and get better with the bat sensor technology used by nearly all the MLB teams

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
665 ratings · Top 30%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included18 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Blast Baseball: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Train smarter and get better with the bat sensor technology used by nearly all the MLB teams. Simply attach the Blast Baseball Swing Analyzer or Personal Swing Trainer*** to any standard bat and your iPad or iPhone will do the rest. Record video of your swings in the Blast Baseball app* and the patented Smart Video Capture ™ technology will automatically identify your swings, clip your video, and overlay your swing metrics, synchronized at impact. (Bat Speed, Time to Contact, Attack Angle, etc.) With the 3D Swing Tracer, you can replay and analyze your swing path instantly. Live mode provides real-time feedback, allowing you to visualize your swing, make adjustments, and see the results. Compare your swing videos side-by-side or send them to a coach for further analysis. Players and coaches with a membership or free trial can utilize the app’s advanced functionality to automatically assess every swing for swing quality, providing insights in three areas that all great hitters possess: plane, connection, and rotation. Insights make it simple for coaches to evaluate players for recruitment and player development, with recommendations and drills for improvement. Coaches can also streamline coaching feedback through Mobile Video Analysis with voice-over recording and video markup tools. The Blast Baseball Swing Analyzer and Personal Swing Trainer*** are highly accurate, advanced 3D motion capture systems that record your swings. They use Bluetooth® Smart technology to connect to your iPhone or iPad. There’s no need to alter your natural swing. The Swing Analyzer / Personal Swing Trainer know when to dynamically power-up the patented motion detection algorithms to capture your metrics in real-time. They even store data on the Swing Analyzer / Personal Swing Trainer when your mobile device is out of range and download your actions to the Blast app as soon as you reconnect. With the Blast Baseball app* coaches, parents, and players of all ages can gain the insights they need to improve their swing and gain the competitive edge. * The Blast Baseball app requires the Blast Baseball Swing Analyzer or Personal Swing Trainer and the Blast bat attachment to collect data. The app currently supports English language and Imperial measurements. ** Requires a Blast Connect and Premium Services account and Swing Analyzer to provide advanced app, player, and coaching functionality. Blast Connect is an information and player management platform that features data trending, advanced reporting, roster management, mobile video analysis, and more. *** The Blast Baseball Swing Analyzer / Personal Swing Trainer, charger, and bat attachment are sold as packages. Separate purchase required – available from blastmotion.com. Privacy Policy: https://blastmotion.com/privacy-policy/ Terms of Service: https://blastmotion.com/terms-of-service/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Incorporate social features like sharing sessions and competing with friends.

Assumption to check: Limited user engagement features

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more intuitive flow and clearer labeling.

Assumption to check: Confusing navigation structure

Validate with people who use this workflow before building.

Hypothesis 3

Use ML to suggest drills based on performance data.

Assumption to check: Lack of personalized training recommendations

Validate with people who use this workflow before building.

Hypothesis 4

Ensure metrics are accurately tracked and consistently displayed.

Assumption to check: Inconsistent metrics reporting

Validate with people who use this workflow before building.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.